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6950731 |
Traffic pattern approach computer
A mechanical computer used in tandem with a GPS to approach, enter and fly the traffic pattern of any uncontrolled airport. Pilots must navigate to a relatively small area or approach point before...
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6279958 |
Food portion tabulator and method of use
A food portion tabulator device that is an aid for calculating and evaluating an individuals daily intake of food portions. The device is self-contained, having various indicia pertinent to various...
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5886331 |
Electronic calculator for determining truck driver log book values
An electronic calculator for determining truck driver log book values including a liquid crystal display. Also included is a conventional numeric keypad having a matrix of numeric keys for allowing...
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4551620 |
Biorhythms analog computer-calendar
A Biorythms analog computer-calendar is provided to display without computations the level of the physical, the emotional, and the intellectual biorythms of a human body. The level of the three...
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4538352 |
Shrinkage compensated measuring device
The disclosure describes a shrinkage compensated measuring device comprising a first scale calibrated in units of length, e.g., inches or centimeters, and a second scale calibrated in units of...
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4476380 |
Calculator
A calculator of flat design with a surface chart showing marginal scales and diagonal inner ones. The top of the calculator serves as a cover attached marginally to a case underneath. Also, the top...
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4274204 |
Aircraft traffic pattern computer
An aircraft traffic pattern computer employing a slotted frame having a window surrounded by a compass rose which is movable in relation to the frame about a pivot point, the slotted frame being...
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4203542 |
Calculating apparatus
A calculator is described which greatly simplifies the calculation of the required feeder head parameters, e.g. size, amount of antipiping compound, in casting metals. Only the size of the casting...
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4122994 |
Method and means for determining optimum average cycle lengths
A method and computational aid for determining the optimum cycle lengths for use in a vehicular traffic control system wherein inbound and outbound traffic flow are equally favored. The method...
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4117973 |
Calculating devices
This invention relates generally to graphic calculating methods and apparatuses, and in particular to an apparatus by which the values and other factors pertaining to bonds, stocks and other...
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4074116 |
Selector
A device for selection of compressors, condensers, expansion valves, and evaporators for air conditioning or refrigeration systems.
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3984657 |
Stock trend indicator
A stock trend indicator and method of using is disclosed. The manipulable instrument is used with a standard stock chart to forecast an evaluation of future stock behavior.
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3927395 |
Control device for tabulation printing
A control device for tabulation printing comprises a tabset register for defining each column of a printing sheet to be tabulation-printed; storing means adapted to store a printing position on the...
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3924104 |
Noise and reverberation sonar range computer
This disclosure is directed to a slide rule type device for determining the noise and reverberation which limits sonar performance. The device includes a base and cursor upon which related...
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3908112 |
Calculator for stereoscopic photography
In the illustrative embodiment of the invention disclosed, a calculator for use in stereoscopic photography embodies a suitable combination and arrangement of scales and indicators for enabling...
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3906193 |
Mathematical calculating
The invention is a numerical calculator with which one can perform the mathematical operations multiplication, division, ratios, etc. The calculator operates by the combined use of an abscissa...
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3883722 |
Active and passive sonar range computer
A hand operated active and passive sonar range computer that relates various parameters depending on obtained oceanic values either actual or from charts in order to simply determine range.
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3870225 |
VARIABLE LINEAR GRAPH
A mechanical graph for calculating the linear relationship between two values. The graph includes a rectangular case having orthogonal graph lines thereon, with an origin at a corner of the graph....
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3732399 |
COMBINED OVAL SLIDE RULE AND NOMOGRAPH
A calculating device comprising a flat generally oval-shaped card member having a perimeter defining somewhat semicircular sections interconnected by a central elongated section. The central...
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3719806 |
APPARATUS FOR CALCULATING HALFTONE SCREEN EXPOSURES
An improved method and apparatus for calculating halftone screen exposures to produce photographic halftone reproductions useful in printing applications. In one embodiment, a slide-rule type...
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3708653 |
METHOD AND DEVICE FOR THE DESIGN OF TWO PARAMETER DISTRIBUTION SYSTEM
A device and method especially suited for use in the design of a cable television signal distribution system includes a chart having mutually perpendicular axes representing the signal intensities...
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3685724 |
DEVICE FOR THE GRAPHICAL SOLUTION OF SIMULTANEOUS EQUATIONS
A device for the graphical solution of the simultaneous equations A = f (D, C, K), which equations can be represented by nomographs, e.g., Larson's Nomograph, having two spaced vertical axes...
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3650466 |
SLOPE CALCULATOR
A manually operable computer for slope calculations and in particular for calculating air flow rates from a patient's spirogram including a circular indicating disc with a diametral line thereon...
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3638311 |
NAVIGATIONAL CALCULATOR
A calculator for solving navigational problems, particularly adaptable for use by pilots of light planes. The calculator is a single sheet of flexible, transparent material having a set of curves...
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3563456 |
TYPE-FITTING CALCULATOR APPARATUS
This invention is a type-fitting calculator apparatus having a type-fitting calculator chart with a plurality of indicia thereon; an actuator slide member provided with indicia thereon movable...
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3559881 |
NOMOGRAM COMPUTER
An instrument for solving mathematical problems and involves nomograms that enable the manipulation of a straight line to read off the value of a dependent variable when the value of an independent...
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3473731 |
SPEED REGISTER
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3436012 |
KITCHEN CALCULATOR AND METHOD FOR USE
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3413648 |
X-y plotter combined with calculator
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3410483 |
Horsepower computer
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3409216 |
Grease flow predictor
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3403445 |
Polar coordinate chart reader
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3372867 |
Data indicating apparatus
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3333767 |
Calculator
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3289931 |
Discounted cash flow return rate template
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3276683 |
Calibration device
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3273795 |
Calculator for the decibel radar prediction system
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3220643 |
Navigation instrument
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3213544 |
Instrument for computing time of arrival at a destination
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3206113 |
Flight computing instrument
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3189272 |
Calculator device
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3163358 |
Refractionist's optical center location device
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3162363 |
Slide-rule for performing calculation involving screens to protect personnel against radiations
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3160851 |
Equipment for displaying the position of crafts on the map
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3160051 |
Pipe organ action
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3159339 |
Visual flight regulations navigator
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3139234 |
Right-angled triangle as an auxiliary calculating device
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3137443 |
Vector calculator
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3134540 |
Nomographic computing device
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3133352 |
Satellite alert
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